Prior to establishing Pembroke, Peter served for 25 years as President of the Gunwyn Company, a real estate development and management firm affiliated with the renowned Graham Gund Architects in Cambridge, Mass.

Peter is affiliated with a number of professional organizations. He is a Fellow of the American Institute of Architects; Board Member of the National Association of Industrial and Office Properties; a Trustee and former Chair of the Boston Foundation for Architecture; and a Member of the Urban Land Institute. He is a former Board Member of the Boston Society of Architects.

Peter is also active in community, arts, and alumni organizations. He has served as a Director and former Vice President of The Trustees of Reservations; an Overseer of the Boston Lyric Opera and Overseer of the New England Conservatory of Music; a Trustee and former Chair of the Society for the Preservation of a New England Antiquities; Treasurer of the Career Collaborative; and President of the Frog Pond Foundation. He was a member for four terms of the Harvard Graduate School of Design Alumni Council, twice serving as its Treasurer. He remains active in the Real Estate Academic Initiative at Harvard, and is a Director of the Harvard Alumni Association. He has served on building committees for numerous civic, church, and school projects, and for the Essex Shipbuilding Museum, which he helped found in 1976. Also, Peter co-authored A Traveler's Guide to India, which was published by Scribner's in 1973.

Peter earned his Bachelor of Arts degree with high honors at Harvard College and his Master of Architecture at Harvard's Graduate School of Design.